I am using a USB-UART on Atmel's SAMV71/Cortex M7 Micro controller and interfacing it to a Linux Machine and also Atmel's SAMA5 Device USB Host running linux.

The SAMV71 Micro controller enumerates as /dev/ttyACM0 but i want it to enumerateas /dev/ttyUSB0 . Please help to understand what changes should i make on SAMV71 Micro controller ( using IAR Framework available on atmel website ) or on Linux to enumerate as /dev/ttyUSB0.

There is probably a better answer to your question. But I have been trying to get the USB CDC project to work on the target USB port via FTDI serial for the SAMV21 eval board. It kind of works before crashing with one computer -but other computers can not seem to connect to the port without errors. In the course of trying to find a solution to that problem, I did notice in the project code that there are configuration files that define the connection. I'm not sure if any have what you are after, but I copy the USB configuration file from the example project below: